tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#ifndef __ORDERED_EVENTS_H
2#define __ORDERED_EVENTS_H
3
4#include <linux/types.h>
5#include "tool.h"
6
7struct perf_session;
8
9struct ordered_event {
10 u64 timestamp;
11 u64 file_offset;
12 union perf_event *event;
13 struct list_head list;
14};
15
16enum oe_flush {
17 OE_FLUSH__NONE,
18 OE_FLUSH__FINAL,
19 OE_FLUSH__ROUND,
20 OE_FLUSH__HALF,
21};
22
23struct ordered_events {
24 u64 last_flush;
25 u64 next_flush;
26 u64 max_timestamp;
27 u64 max_alloc_size;
28 u64 cur_alloc_size;
29 struct list_head events;
30 struct list_head cache;
31 struct list_head to_free;
32 struct ordered_event *buffer;
33 struct ordered_event *last;
34 int buffer_idx;
35 unsigned int nr_events;
36 enum oe_flush last_flush_type;
37 bool copy_on_queue;
38};
39
40struct ordered_event *ordered_events__new(struct ordered_events *oe, u64 timestamp,
41 union perf_event *event);
42void ordered_events__delete(struct ordered_events *oe, struct ordered_event *event);
43int ordered_events__flush(struct perf_session *s, struct perf_tool *tool,
44 enum oe_flush how);
45void ordered_events__init(struct ordered_events *oe);
46void ordered_events__free(struct ordered_events *oe);
47
48static inline
49void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size)
50{
51 oe->max_alloc_size = size;
52}
53
54static inline
55void ordered_events__set_copy_on_queue(struct ordered_events *oe, bool copy)
56{
57 oe->copy_on_queue = copy;
58}
59#endif /* __ORDERED_EVENTS_H */